We were swept away by the response to this competition. Letters arrived from rivers across the world – the Thames, the Mississippi and many more unnamed waterways – each one brimming with personality, passion and a genuine love of the natural world. You gave your rivers voices that were worried, hop...

Somewhere beneath a grassy field right now, a tiny insect is building an underground loudspeaker. Male mole crickets engineer horn-shaped burrows that amplify their calls hundreds of metres into the night air – and your child can recreate the same science at home using nothing but cardboard and a phone. This hands-on experiment explores sound, shape and natural engineering in a way that is genuinely surprising. No screens, no special equipment, just a brilliant idea borrowed from nature.

Our Risky Moment competition invited young explorers to capture a risky moment in the wild – a split second when animals must make bold choices to survive. From daring leaps across rocky cliffs to dangerous river crossings, we received many hair-raising entries showing just how adventurous life in nature can be.